②施工方人员不了解引压管卡套的结构原理，将前后卡套的顺序装反或是将前后卡套的各自方向装反；
The second is that the constructors are not so familiar with the structures and sealing principles as to make mistakes with the setting direction of the ferrules.
变送器应直接安装在测量点，但强腐蚀性的或过热的介质不应与变送器接触，需借助引压管作为过渡，把取压口介质压力传输到变送器。
It should be installed on the measuring point but not to touch the medium with strong corrupt and high temperature. It is better to make a transition by a special pipe.
变送器应直接安装在测量点，但强腐蚀性的或过热的介质不应与变送器接触，需借助引压管作为过渡，把取压口介质压力传输到变送器。
It should be installed on the measuring point but not to touch the medium with strong corrupt and high temperature. It is better to make a transition by a special pipe.
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